Method for recovering silicon from sawing waste

A method for separating and recovering silicon debris from sawing waste is characterized in that it comprises the following steps: - treating the sawing waste so as to deoxidize the silicon debris in a manner that reduces their surface energy, - applying to the sawing waste thus treated a flotation method using a flotation liquid and a nonoxidizing flotation gas, and - recovering the silicon debris at the surface of the flotation liquid.


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